[Paraview] Q-criterion still wrong ?

[Andy Bauer]

It's an option, along with vorticity, under the Gradient of Unstructured
Dataset filter. The current behavior is a bit non-intuitive in that if you
check Compute Vorticity the output will be the vorticity (assuming a vector
field), otherwise the output will be the gradient. For the Compute
QCriterion option though it outputs that in addition to the other outputs.
This will get changed in 4.0 though to be a bit clearer.

Andy

On Wed, Aug 15, 2012 at 8:03 AM, Florian Lindner <mailinglists at xgm.de>wrote:

> Sorry for being ignorant.. I never found a Q criteria filter in
> paraview? Where is it?
>
> 2012/8/14 Andy Bauer <andy.bauer at kitware.com>:
> > FYI: The fix has made its way into ParaView. Thanks again for the bug
> > report.
> >
> > Andy
> >
> > On Fri, Jul 20, 2012 at 2:48 PM, Andy Bauer <andy.bauer at kitware.com>
> wrote:
> >>
> >> Thanks for finding this.  I have a fix in gerrit at
> >> http://review.source.kitware.com/#/t/957/. It should make it into VTK
> and
> >> ParaView shortly.
> >>
> >> Andy
> >>
> >> On Fri, Jul 20, 2012 at 8:53 AM, Aurélien Marsan <aur.marsan at gmail.com>
> >> wrote:
> >>>
> >>> Good morning,
> >>>
> >>> I have just found the following bug report about a mistake in the
> >>> Q-criterion formula.
> >>> http://paraview.org/Bug/view.php?id=12858
> >>> that is now closed.
> >>>
> >>> However, the "1/2" factor may still be missing.
> >>> In vtkGradientFilter.cxx, in the VTK/Grahpics directory, on the line
> 65,
> >>> t1 should be divided by 2. (Paraview 3.14.1)
> >>>
> >>> Should I re-open the bug report ?
> >>>
> >>> With best regards,
> >>>
> >>> Aurélien
> >>>
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